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Distribution, production histology and histochemistry in Acartia tonsa (Copepoda: Calanoida) as means for life history and determination in a temperate estuary

2003Journal article Restricted access
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datacite.subject.sdg14:Proteger a Vida Marinhapt_PT
dc.contributor.authorPastorinho, Ramiro
dc.contributor.authorVieira, Luís
dc.contributor.authorRé, Pedro
dc.contributor.authorPereira, Mário
dc.contributor.authorNicolau, Paula Bacelar
dc.contributor.authorMorgado, Fernando
dc.contributor.authorMarques, João C.
dc.contributor.authorAzeiteiro, Ulisses
dc.date.accessioned2023-06-14T10:48:04Z
dc.date.available2023-06-14T10:48:04Z
dc.date.issued2003
dc.description.abstractAcartia tonsa is a key species in the Mondego estuary and a widespread species in all temperate estuarine zooplankton communities; a fact that bestows high relevance upon the outcome of this study. One of the purposes of this study was to estimate the distribution, production and production/biomass ratio values of A. tonsa. Biomass/length relationship was estimated as follows: Y = 0.15e3.04x. Length-weight relationships were used to estimate production taking into account cohort growth and mortality. The annual production was calculated to be 43.12 mg Cm–3 year–1 and the production/biomass (P/B) ratio was estimated to be 10.56. The other purpose of this study was to use histology, histochemistry and biometry to determine as to whether fecundity is a limiting factor in itself or are zooplankters constrained to respond to an ever changing environment. Analyses of the maturation stage of oocytes in adult ovigerous females performed in two different periods of opposed abundance (February— high abundance, representing maximum fertility—and September—low abundance, representing “sterility”) demonstrated the presence of all three considered oocytical development stages: immature, vitellogenic and mature; with emphasis on the latter since it indicates a permanent capability for reproduction despite the registered population abundances. Taking into account the relevance of the species, this fact demonstrates the modulating influence of ecological parameters on general zooplankton reproductive traits.pt_PT
dc.description.sponsorshipPRAXIS/P/MGS/11238/1998 - Impacto humano sobre a dinâmica estuarina de matéria e energia – bases para a gestão integrada de ecossistemas estuarinos - PROGRAMA PRAXIS XXI/98pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/S1146-609X(03)00018-3pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.2/14022
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectZooplanktonpt_PT
dc.subjectEstuariespt_PT
dc.subjectAcartia tonsapt_PT
dc.subjectProductionpt_PT
dc.subjectGonadspt_PT
dc.subjectHistochemistrypt_PT
dc.subjectHistologypt_PT
dc.titleDistribution, production histology and histochemistry in Acartia tonsa (Copepoda: Calanoida) as means for life history and determination in a temperate estuarypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPageS273pt_PT
oaire.citation.issue24pt_PT
oaire.citation.startPageS259pt_PT
oaire.citation.titleActa Oecologicapt_PT
person.familyNameNicolau
person.familyNameAzeiteiro
person.givenNamePaula Bacelar
person.givenNameUlisses
person.identifierhttps://scholar.google.com/citations?hl=pt-PT&user=WWFc0MkAAAAJ
person.identifier90893
person.identifier.ciencia-id7D11-BE78-21FD
person.identifier.ciencia-id1C13-105A-FF3A
person.identifier.orcid0000-0001-5940-5131
person.identifier.orcid0000-0002-5252-1700
person.identifier.ridC-5933-2008
person.identifier.scopus-author-id6507462575
person.identifier.scopus-author-id6603109821
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc65a3227-1c5b-4bd3-b49c-95c19d53fdd6
relation.isAuthorOfPublicationdd4a3fac-560c-490a-ab12-223bc59d1531
relation.isAuthorOfPublication.latestForDiscoveryc65a3227-1c5b-4bd3-b49c-95c19d53fdd6

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